rs6000.c (rs6000_option_override_internal): Display warning message for -mno-speculate-indirect-jumps.

[gcc]

2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Display warning message for -mno-speculate-indirect-jumps.

[gcc/testsuite]

2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/safe-indirect-jump-1.c: Detect deprecation
	warning for -mno-speculate-indirect-jumps.
	* gcc.target/powerpc/safe-indirect-jump-2.c: Likewise.
	* gcc.target/powerpc/safe-indirect-jump-3.c: Likewise.
	* gcc.target/powerpc/safe-indirect-jump-4.c: Likewise.
	* gcc.target/powerpc/safe-indirect-jump-5.c: Likewise.
	* gcc.target/powerpc/safe-indirect-jump-6.c: Likewise.
	* gcc.target/powerpc/safe-indirect-jump-7.c: Likewise.

From-SVN: r257419

10 files changed, 28 insertions, 0 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b42a123..4b4558b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+	* config/rs6000/rs6000.c (rs6000_option_override_internal):
+	Display warning message for -mno-speculate-indirect-jumps.
+
 2018-02-06  Andrew Jenner  <andrew@codesourcery.com>
 
 	* config/powerpcspe/powerpcspe.opt: (msimple-fpu, mfpu) Add
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a37ebd8..6a6801a 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -5295,6 +5295,11 @@ rs6000_option_override_internal (bool global_init_p)
   if (TARGET_LINK_STACK == -1)
     SET_TARGET_LINK_STACK (rs6000_tune == PROCESSOR_PPC476 && flag_pic);
 
+  /* Deprecate use of -mno-speculate-indirect-jumps.  */
+  if (!rs6000_speculate_indirect_jumps)
+    warning (0, "%qs is deprecated and not recommended in any circumstances",
+	     "-mno-speculate-indirect-jumps");
+
   return ret;
 }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2e279b4..be9f315 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2018-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+
+	* gcc.target/powerpc/safe-indirect-jump-1.c: Detect deprecation
+	warning for -mno-speculate-indirect-jumps.
+	* gcc.target/powerpc/safe-indirect-jump-2.c: Likewise.
+	* gcc.target/powerpc/safe-indirect-jump-3.c: Likewise.
+	* gcc.target/powerpc/safe-indirect-jump-4.c: Likewise.
+	* gcc.target/powerpc/safe-indirect-jump-5.c: Likewise.
+	* gcc.target/powerpc/safe-indirect-jump-6.c: Likewise.
+	* gcc.target/powerpc/safe-indirect-jump-7.c: Likewise.
+
 2018-02-06  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 
 	PR target/84145
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
index d1ab83a..16ccfe4 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-additional-options "-mno-speculate-indirect-jumps" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of indirect calls.  */
 
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-2.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-2.c
index 1c23a5d..d3d040f 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-2.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-2.c
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-mno-speculate-indirect-jumps" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of computed goto.  */
 
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c
index d0eccc4..c338e30 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-3.c
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-mno-speculate-indirect-jumps" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of jump tables.  */
 
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-4.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-4.c
index ed00007..b55de13 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-4.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-4.c
@@ -1,5 +1,6 @@
 /* { dg-do run } */
 /* { dg-additional-options "-mno-speculate-indirect-jumps" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of indirect calls for ELFv2.  */
 
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-5.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-5.c
index 5a4cd9a..fd04ffd 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-5.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-5.c
@@ -1,5 +1,6 @@
 /* { dg-do run } */
 /* { dg-additional-options "-mno-speculate-indirect-jumps -Wno-pedantic" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of computed goto.  */
 
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-6.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-6.c
index a78e468..1468a4e 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-6.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-6.c
@@ -1,5 +1,6 @@
 /* { dg-do run } */
 /* { dg-additional-options "-mno-speculate-indirect-jumps" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of jump tables.  */
 
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-7.c b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-7.c
index b1bdcca..e7d81d4 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-7.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-7.c
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-additional-options "-mno-speculate-indirect-jumps" } */
+/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
 
 /* Test for deliberate misprediction of indirect calls.  */